This song is just amazing! Her voice makes me go WOW, it's so stunning and this is her best song ever! Amazing!

Well the song has an awesome beat and rhythem to it, and the song is so catchy and makes you want to dance. Christina Aguilera also has an amazing voice, and is a very talented person

'You're the only one who's ever PASSED EVERY TESTT' oh my god she's the ultimate queen, the best live and truly the most criminally underrated, vocally supreme artist. The voice of generation, is an utter understatement. She's the empress, the diva, and the most versatile. Love you xtina, you're the best

AMAZING LEAD SINGLE FOR CHRISTINA'S COMEBACK! I don't why people don't like this song, her vocals are amazing here and the melody and tune really works!

Christina could perfectly unleash her talent and especially her powerful vocals through this song. It was a mixture of wonderful factors that can make of it a success. A beautifully-wrapped gift to all Christina's fans.

This has gotta be above Dirrty and Genie in a bottle. Powerful and inspiring vocals and guess what! THIS SONG CAN ALTER MOODS LIKE HELL.So impacting Song. Hugs and kisses to Christina for this.

The Contenders

11The Voice Within

"Young girl don't cry. I'll be right here when your world starts to fall."-- Those two lines are a masterpiece. Christina made it sounds just right that it feels like whatever you are going through, she will always be right beside you. It is an amazing feeling of connection right there. When I'm sad, lonely, or upset about something, I would sing along with the song and it would magically cheer me up.

I love the meaning of the song! And she has a beautiful voice! BEST SONG OF HERS!

Why is this song not first? It's by far her most inspirational song and I listen to it every time a feel down or upset. It can make you cry but also makes you realise that you have something to be happy about and you're not alone.

This song must be in the top 10. This is my power song and whenever I'm sad, this is,y jam!

The most beautiful song Christina has ever sung. Just love this track. It's tender gentle and the vocal gymnastics just add to the brilliance of it. My 9 year old agrees but prefers hurt just. It's a gem that most Christina fans will not have heard or passed over, if so please give this a listen

This song is so wonderful, I can't stop listening to it. And her vocals! I wonder why this song is down here. It should at least on the top 15..

The most beautiful song, I don't understand how it's only number 40. Especially since it's belong a lot of songs of her's that I've never even heard of.

The HARDEST SONG EVER! So underrated. For me this is the best song from her.

Another one of those songs that gets me goosebumps. The song reminds me of a kind of abusive relationship where you should get out but you might not want to. As I listened to this, I felt the weight of the decision whether or not she would/could leave him. The voices inside her head and the conflict inside her heart. All I can say is Christina did an excellent job on this one; it's a heart-wrenching, beautiful journey she took me on every single time I listen to Walk Away.

The best version of this song which I ever heard is live on the Stripped Tour in London. That song is great! Christina gave a great performance when she sings live - mainly in this song!

I've always thought this was a beautiful song! If you try to sing along and keep up you will see just how talented she is because its an incredibly difficult song to sing.

This ballad is like the best thing to come from the big pop-vocal divas of the past 30 years.